razama wrote...
But it wont cause no guy is going to let his wife fuck another dude. Just the nature of the beast.
That's definitely a real bias, but it's by no means absolute. There was an episode of Penn & Teller Bullshit that discussed marriage- they did a focus on one particular married couple both partners had lovers on the side and they were totally cool with it.
I think there are a lot of guys who would be willing to share a woman if they are convinced that the new guy will be kind and loving to her, and that the new guy will not terribly diminish access to the wife. Most guys are inherantly jealous, so it's a tall order, but not inconceivable.
I also saw a documentary about an interesting tribe in south america...
from wikipedia:
The marriage rituals of the Zo'e are complex and not fully understood. It is not known how many wives or husbands one is allowed to have. Usually one woman has several husbands, one or more of whom may be "learning husbands"; young men learning how to be good spouses, in exchange for hunting for the rest of the family.